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2007 Lexus GS350 (+)Ignition Wire

+1 vote
Trying to install Evo-One.  Instructions only say connect to ignition(+) at fuse box.  WireColor chart only shows (-) Blue wire at fuse box.  Is this just a mistake?  Other manaufactures show a ignition(+) at the brake switch, but also say this requires a diode to be put in place.  Instructions show the connector for the start button, but not which one to use at the fuse box.  Fuse box has multible blue wires.

Also not real sure about the location of the Blue wire in the Parking Light Harness.

S/N 002B07147486
asked Jan 10, 2017 in Lexus by Chad Stanley (140 points)

1 Answer

+1 vote
WireColor chart is incorrect for this vehicle.  It is the first larger blue wire at the bottom of the fuse box, but it is (+), not (-) as indicated.

The Evo-One does not require a diode.

The parking light harness is below the steering wheel, under the lower cover.  Not to the left of it as the picture in the instructions shown for this vehicle.

The start button will just pop out to give access to the wires needed.  My connector was black, not white.

Before trying to program, remove the battery from your remote.  Place the remote close to the start button and look for the light on the button to light up.  At this point you should be able to start the car with the brake engaged.  Now that you know the correct placement for this to work, try programming the module.  I had tried this countless times and was getting nothing until verifying I could start the car with no battery.  It then seemed to magically work more than once.

As tempting as it is even to just verify you have the correct wires, do not use wire taps.  These things completely blow.  I ended up with two connections I would have thought for sure were good, until I actually tested them with a meter.

 Hope this helps someone else in the future, WireColor.com instructions were rather disappointing for this car.  However, the two techs I spoke with were great.  Now if I can just get the Drone to actually trigger it. :)
answered Jan 11, 2017 by Chad Stanley (170 points)